Gaseous fuel burner



Sept 19, 1950 J. s. CLARKE ErAL 2,523,194

GASEOUS FUEL BURNER Filed March 21. 1949 Patented Sept. 19, 1950 UNITED STATES PATENT GASEOUS FUEL BURNER FFICE Lucas Limited, Birmingham, England Application March 21, 1949, Serial No. 82,604 In Great Britain March 25, 1948 1 Claim.

This invention relates to gas burners (and particularly burners for use with hot-air engines), of the kind in which a combustible mixture of air and gaseous or liquid-fuel is supplied to an annular combustion chamber by an annuthe open end of the ring.

from the preheater can enter the turbulating ring with the gases from the duct i through the orifices o. Also it can ow into the spaces m and thence between the distance pieces n to the lower end of the turbulating ring. Further air lar duct having outlet orifices adjacent to the 5 can enter the said ring from the spaces my said chamber. The object of the invention is to through the orifiices p. provide in the combustion chamber improved By the use of a turbulating ring as above deturbulating means for effecting satisfactory adscribed w-e are able to ensure effective mixing of mixture and regulation of additional air ad- 1o the additional preheated air with the combustimitted to the region of combustion. ble mixture, and also prevent overheating of The invention comprises the combination with the Wal-1S O the Combustion Chamber adjacent the combustion chamber, of a turbulating ring of t0 the region of combustion. Further by the use channel section, and having orinces in its closed 0f a turbulatins fins as above described improved end opposite and adjacent to those in the anflame stability is obtained. nular duct which conveys the combustible mix- Having thus described our invention, what we ture, additional air orinces being formed in the claim as new and desire to secure by Letters Patsides of the turbulating ring, and the latter being erll iSI also adapted to form with the sides of the corn- A gas burner comprising in Combination an bustion chamber passages for the ilow of air to annular COmbUSOrl Chamber baVirlg an open end, an annular duct arranged adjacent to the The accompanying drawing is o, Seotiona] Sido open end of said combustion chamber and havelevation illustrating one embodiment of the inlug Outlet OrCeS lilirOuf-:h Which a gaseous mX- vention for use with a hot air engine. ture of air and fuel supplied to said duct can flow Referring to the drawing, a, indicates a part into said combustion chamber, a turbulating of the cylinder of the engine. lnto this ex.. ring of channel section situated in the open end tends an annular combustion Chamber l; which of said combustion chamber with the closed end is divided by an annular partition c. The gase- 0f said ring adjacent t0 said annular duet. and ous or vapourised fuel, with some air, enters at with the sides of said ring spaced frOm the C01- g into a chamber h, and thence passes to an responding sides of said combustion chamber to annular duct i having outlet orinces j opposite form passages for the flow of air past the sides the adjacent end of the combustion chamber. O Said ring lrlllO Said @OmbuSliOu Chamber, the The hot gases issuing from the orices y' enter Closed end of said ring beine formed at positions the open upper end of the combustion chamber ODDOSll'fa t0 the Outlet OriCES irl Said duCt With b, and flow down the region d at one side of the OrlCeS through which air and the gaseous mixpartition c and up the region d1 ai; the other Side ture from said outlet orifices can ow, and the of the partition, before flowing downwardly sides of said ring being formed with additional through the preheaters e to a discharge outlet j. OriCeS lihrOugll WiilCh ail' from Said DaSSageS Carl At the same time additional air for admixture W- with the hot gases is supplied to an inlet g1 and 4o JOHN STANLEY CLARKE. flows down the outer side of, and upwardly ALBERT EDWARD CLARKE. through, the preheaters e before entering the NOEL PARKER COUPE. upper end of the combustion chamber b.

According to the invention, there is mounted REFERENCES CTED in the Combustion Chamber and adjacent t0 the 45 The following references are of record in the said duct i, a turbulating ring Ic of inverted chanme of this patent; nel section. This ring is shaped to provide annular spaces m between it and the inner surfaces UNITED STATES PATENTS of the combustion chamber. Also it has formed Number Name Date on it distance pieces n which provide passages 5o 697,768 Woodward Apr. 15, 1902 through which air can flow to the open lower 1,510,039 Canfield Sept. 30, 1924 end of the ring. In the upper end of the ring 1,596,609 Gault Aug. 17, 1926 are formed orices o situated opposite the ori- 2,167,133 Naab el? al July 25, 1939 fices y' in the duct i, and lateral orifices p. Air 

